Access
To work with the Access tab, the user needs full access to the account.
On this tab, you can see and change the access rights of users to the account.
In the left part of the window, you can see the list of users to whom you can grant access rights to the account. Only users to whom you have full access are shown in the list. The names of the users who have any access to the account are highlighted in colour.
In the right part of the window, you can see the access right presets to the account that you can grant to the user.
Read more about access rights here.